mod_sofia tls read failure

[xbipin]

i have a versy basic setup of FS with 1 profile. The profile accepts calls with TLS and sRTP and then sent to gateway in plain SIP. Im using xml_curl for users.
Every few days the profile keeps crashing or gets stuck in a loop and then i cant even restart the FS service even, have to kill it and then start it or else it wont accept any further registrations or calls. I have tried playing with xml_curl caching, watchdog etc since past one year and nothing seems to help. Even tried logging everything to file to see the cause of the crash but nothing helpful is written in log. The only error i get to see when this happens in fs_cli is below:

..\..\sofia-sip\libsofia-sip-ua\tport\tport_type_tls.c:434 tport_tls_recv() tport_type_tls(00000006A25BB0C0): tls_read() returned -1 ..\..\sofia-sip\libsofia-sip-ua\tport\tport.c:2864 tport_recv_event() tport_recv_event(00000006A25BB0C0) ..\..\sofia-sip\libsofia-sip-ua\tport\tport_type_tls.c:434 tport_tls_recv() tport_type_tls(00000006A25BB0C0): tls_read() returned -1 ..\..\sofia-sip\libsofia-sip-ua\tport\tport.c:2864 tport_recv_event() tport_recv_event(00000006A25BB0C0) ..\..\sofia-sip\libsofia-sip-ua\tport\tport_type_tls.c:434 tport_tls_recv() tport_type_tls(00000006A25BB0C0): tls_read() returned -1 ..\..\sofia-sip\libsofia-sip-ua\tport\tport.c:2864 tport_recv_event() tport_recv_event(00000006A25BB0C0) ..\..\sofia-sip\libsofia-sip-ua\tport\tport_type_tls.c:434 tport_tls_recv() tport_type_tls(00000006A25BB0C0): tls_read() returned -1 ..\..\sofia-sip\libsofia-sip-ua\tport\tport.c:2864 tport_recv_event() tport_recv_event(00000006A25BB0C0) ..\..\sofia-sip\libsofia-sip-ua\tport\tport_type_tls.c:434 tport_tls_recv() tport_type_tls(00000006A25BB0C0): tls_read() returned -1 ..\..\sofia-sip\libsofia-sip-ua\tport\tport.c:2864 tport_recv_event() tport_recv_event(00000006A25BB0C0) ..\..\sofia-sip\libsofia-sip-ua\tport\tport_type_tls.c:434 tport_tls_recv() tport_type_tls(00000006A25BB0C0): tls_read() returned -1

[mjerris]

This looks like something is closing the tls port. I've never seen something like this happen before, you'd need to look for something on the system messing with this port.

[xbipin]

I tried to look for port conflicts in the start but nothing seems to be using that tls port I have set. There is another instance of FS running but that's using totally different sip and rtp ports. Matter of fact when the above happens I can't even shutdown the FS service, only way to fix is to kill the task and restart it and it happens at random times